Does your perfect green lawn keep getting invaded by pesky, unwanted visitors? Those stubborn dandelions and creeping clover can turn your dream yard into a frustrating mess. It feels like you just finished mowing, and already the weeds are back, mocking your hard work.
Choosing the right Lawn Weed Killer and Feed can feel like navigating a jungle of confusing labels and conflicting advice. Should you use a pre-emergent or a post-emergent? Will the “feed” burn your grass? These products promise a beautiful lawn, but picking the wrong one can waste money or even damage the very grass you want to protect. It is a common headache for every homeowner.
This guide cuts through the confusion. We will break down exactly what these powerful products do, how to choose the best formula for your specific lawn problems, and the simple steps to apply them correctly. Get ready to stop fighting weeds and start enjoying a thick, healthy carpet of green.
Top Lawn Weed Killer And Feed Recommendations
- Up to 2X more powerful dandelion and clover control (vs. previous formula)
- Clears out dandelions and clover—satisfaction guaranteed
- Weedgrip Technology grips the weeds you see—and the ones you don't
- Scotts most powerful weed and feed
- Feeds to thicken lawns and crowd out weeds
- WEED AND FEED FOR LAWNS: Apply this combination weed killer for grass and lawn food to your wet lawn when weeds are actively growing and daytime temperatures are consistently between 60°F and 90°F; don't apply more than 2X per year
- WEED KILLER PLUS LAWN FOOD: Scotts Turf Builder Weed & Feed5 weed killer plus fertilizer for grass is a clover and dandelion killer for lawns that also feeds to thicken your lawn and crowd out future weeds
- DO NOT USE ON: Do not use this grass fertilizer for lawns plus yard weed killer on St. Augustinegrass (including Floratam), Dichondra, Lippia, Carpetgrass, and Bentgrass lawns
- USE ON LISTED GRASS TYPES: Apply this lawn care product to Bahiagrass, Bermudagrass, Bluegrass, Centipedegrass, Fescue, Ryegrass, and Zoysiagrass
- WEED CONTROL FOR LAWNS: These Scotts weed killer plus lawn fertilizer granules control over 50 listed lawn weeds, including clover, dandelion, plantain, morningglory, chicory, eveningprimrose, and purslane
- Up to 2X more powerful dandelion and clover control (vs. previous formula)
- Clears out dandelions and clover—satisfaction guaranteed
- Weedgrip Technology grips the weeds you see—and the ones you don't
- Scotts most powerful weed and feed
- Feeds to thicken lawns and crowd out weeds
- 3-IN-1 FORMULA: Scotts Turf Builder Triple Action1 is a three-in-one lawn fertilizer and weed control formula that kills listed lawn weeds, prevents crabgrass, and feeds grass to build thick, green lawns
- WHERE TO USE: This grass fertilizer, crabgrass preventer, and clover and dandelion killer for lawns is for use on Bahiagrass, Centipedegrass, Kentucky Bluegrass, Perennial Ryegrass, Bermudagrass, Tall Fescue, Fine Fescue, and Zoysiagrass
- LAWN WEED CONTROL: This lawn care product is a weed killer for lawns that controls dandelion, clover, dollarweed, ground ivy, chickweed, plantain, henbit, English daisy, and other listed lawn weeds
- CRABGRASS PREVENTER: This pre-emergent weed killer also prevents crabgrass for 4 months (will not kill existing crabgrass); stops other listed grassy weeds from invading your lawn
- HOW TO USE: Apply to a wet lawn with a Scotts spreader, then water in after 24 hours; apply in early spring when dandelions are actively growing
- WEED KILLER SPRAY FOR LAWNS: With a simple hose-end application, kill weeds in your lawn, including dandelions, chickweed, clover, crabgrass and foxtail with Ortho WeedClear Lawn Weed Killer Ready-to-Spray
- FAST-ACTING WEED CONTROL: This weed killer hose sprayer kills listed weeds like crabgrass, dandelion, clover, chickweed and creeping charlie down to the root and gets results with 1 application
- COVERAGE: This 32 fl. oz. container of Ortho WeedClear Lawn Weed Killer Ready-to-Spray provides up to 5,000 sq. ft. of lawn care
- HOW TO USE: Apply to listed lawn weeds that are young and actively growing by connecting your garden hose to the weed killer sprayer, sliding the switch to "ON" and spraying evenly until the lawn is wet
- WHERE TO USE: This spray weed killer for lawns won't harm lawn grasses when used as directed - use on lawn grasses including Bermudagrass, Buffalograss, Fescues, Kentucky Bluegrass, Ryegrass and Zoysiagrass
- KILLS TOUGH WEEDS: Apply our revolutionary 5-in-1 Weed and Feed formula to actively growing turf to target over 200 listed types of weeds, including hard-to-kill weeds like dandelions, clovers, and black medic
- PREVENTS NEW WEEDS UP TO 6 MONTHS: Forms a protective soil barrier that prevents listed weeds from emerging for up to 6 months; Apply in spring or early summer, even if Crabgrass and weeds have already sprouted
- KILLS LARGE CRABGRASS: Contains four proven weed killers to control crabgrass, killing to the root; Crabgrass starts to turn purple in 3 days, that's the sign it's working; Creates a long-lasting barrier that helps stop crabgrass from returning for up to 6 months
- FEEDS & GREENS: Fertilizer feeds and greens your lawn for up to 3 months to promote thicker, healthier turf; Apply granules with a broadcast or drop spreader for smooth, even coverage across established lawns
- GET MORE FROM THE BLUE BOTTLE: From simple spot treatments to season-long protection, BioAdvanced's science-based solutions make it simple to control unsightly weeds, feed your lawn, and protect against damaging diseases without harming the lawn
- 3-IN-1 FORMULA: Scotts Turf Builder Triple Action1 is a three-in-one lawn fertilizer and weed control formula that kills listed lawn weeds, prevents crabgrass, and feeds grass to build thick, green lawns
- WHERE TO USE: This grass fertilizer, crabgrass preventer, and clover and dandelion killer for lawns is for use on Bahiagrass, Centipedegrass, Kentucky Bluegrass, Perennial Ryegrass, Bermudagrass, Tall Fescue, Fine Fescue, and Zoysiagrass
- LAWN WEED CONTROL: This lawn care product is a weed killer for lawns that controls dandelion, clover, dollarweed, ground ivy, chickweed, plantain, henbit, English daisy, and other listed lawn weeds
- CRABGRASS PREVENTER: This pre-emergent weed killer also prevents crabgrass for 4 months (will not kill existing crabgrass); stops other listed grassy weeds from invading your lawn
- HOW TO USE: Apply to a wet lawn with a Scotts spreader, then water in after 24 hours; apply in early spring when dandelions are actively growing
- 10 MINUTE LAWN CARE: A 32 fl. oz. bottle of Scotts Turf Builder Liquid Lawn Food Plus Weed Control connects to your hose and provides 2,000 sq. ft. of weed control for lawns in 10 minutes
- LESS PLASTIC WASTE: The reusable applicator is designed to be used with our refill bottles of fertilizer plus lawn weed killer (sold separately)
- 2-IN-1 FORMULA: Our dual-action weed and feed for lawns controls stubborn weeds like dandelions and clover while feeding your grass to build a thicker, greener lawn that crowds out future weeds
- EASY TO USE: The translucent lawn food plus weed killer spray bottle lets you see exactly how much product you’re using as you spray, eliminating guesswork
- USE ON MOST LAWNS: This fertilizer plus weed killer for lawns is labeled for use on most common lawns, including bluegrass, fescue, ryegrass, bahiagrass, bermudagrass (common and hybrid), centipedegrass, and zoysiagrass when weeds are actively growing
Your Guide to Greener Grass: Choosing the Best Lawn Weed Killer and Feed
Want a lush, green lawn without pesky weeds? A combination weed killer and fertilizer product is a fantastic shortcut. These products tackle existing weeds while feeding your grass for a healthy boost. But how do you pick the right one? This guide breaks down what you need to know.
Key Features to Look For
When shopping, look for these important features to ensure you get the best results for your lawn:
- Weed Control Spectrum: Does it kill broadleaf weeds (like dandelions and clover) or also grassy weeds (like crabgrass)? Choose a product that targets the specific weeds you see most often.
- Fertilizer NPK Ratio: This stands for Nitrogen (N), Phosphorus (P), and Potassium (K). Nitrogen promotes green, leafy growth. A higher first number (N) usually means a better feeding boost.
- Application Type: Do you need a liquid concentrate that you mix with water, or dry granules you spread with a spreader? Granules are often easier for beginners.
- Rainfastness: How soon after application can it rain? Look for products that are “rainfast” within a few hours so a sudden shower doesn’t wash your hard work away.
Important Ingredients and Materials
The active ingredients determine how the product works. You generally find two main types of weed killers:
Selective Herbicides
These are the good guys for your lawn. They kill the targeted weeds but leave your desirable grass unharmed. Common active ingredients include 2,4-D, Dicamba, and MCPP. Always check the label to ensure it is safe for your specific grass type (like fescue or Bermuda).
Fertilizer Components
The feed part usually contains slow-release nitrogen sources. These ingredients feed your lawn steadily over several weeks, preventing that sudden, short burst of growth followed by yellowing.
Factors That Improve or Reduce Quality
What makes one product better than another? It often comes down to formulation and timing.
Quality Boosters:
- Slow-Release Formulas: These feed your lawn evenly for 6 to 8 weeks, meaning fewer applications.
- Broad-Spectrum Control: Products effective against many types of weeds usually offer better overall value.
- Temperature Suitability: High-quality products clearly state the ideal temperature range for application. Applying when it’s too hot can damage your grass.
Quality Reducers:
- Rapid Burn Risk: If the fertilizer has too much fast-acting nitrogen and you apply too heavily, your grass might burn (turn brown).
- Poor Weed Targeting: If the product doesn’t list the weeds you have, it is a waste of money.
User Experience and Use Cases
How you use the product greatly affects your experience. These products are usually best used in the spring or early fall when weeds are actively growing.
For Quick Fixes: If you have a small patch of dandelions, a liquid spray might be faster for spot treatment, even if you buy a granular combination product for the whole yard.
For Large Lawns: A granular spreader application is much easier and ensures even coverage. Read the spreader settings carefully; too much product in one spot causes spotting.
Safety First: Always wear long sleeves, gloves, and eye protection when mixing or applying chemicals. Keep pets and children off the lawn until the product has dried or settled according to the instructions.
10 Frequently Asked Questions (FAQ) About Lawn Weed Killer and Feed
Q: When is the best time of year to use this product?
A: Spring is excellent for killing young weeds. Early fall is also great because the weeds draw nutrients down to their roots, making the weed killer more effective.
Q: Can I use this product if I just seeded my lawn?
A: No. Most weed killers will harm new grass seedlings. Wait until your new grass has been mowed at least two or three times before applying.
Q: How long until I see the weeds die?
A: Depending on the chemical, you should see visible curling or yellowing of the weeds within 7 to 14 days.
Q: Will this product kill clover?
A: Most good combination products list clover as a target broadleaf weed. Always double-check the product label.
Q: What happens if it rains an hour after I apply the granules?
A: If the product requires 2-4 hours to become rainfast, a quick rain might wash some of the fertilizer away, reducing the feeding benefit. The weed killer might also be less effective.
Q: Can I use a broadcast spreader or do I need a drop spreader?
A: Drop spreaders offer better precision, ensuring the product lands exactly where you aim it. Broadcast spreaders cover more ground faster but can sometimes spray onto sidewalks or flower beds.
Q: Is it safe to mow the lawn right after application?
A: Wait at least one full day, or preferably until after the next scheduled watering or rain, before mowing. Mowing too soon can remove the product before it works.
Q: Why do I see brown patches after using the product?
A: Brown patches usually happen because the product was applied too heavily, or the temperature was too high, causing the grass to burn.
Q: Does this product control crabgrass?
A: Some do, but many standard weed-and-feed products only kill broadleaf weeds. Look specifically for products labeled as “Crabgrass Control” if that is your main concern.
Q: How long should I wait before applying fertilizer again?
A: Since this product includes fertilizer, wait the recommended time listed on the bag—usually 6 to 8 weeks—before applying a separate, plain fertilizer.